Can You Be Fired for Being Sick in Australia? Know Your Legal Protections (2026)
Australian employers cannot simply fire you for being sick — but the protections have limits. Learn about s352 Fair Work Act temporary absence protections, the 3-month rule, workers comp protections, medical certificates, excessive sick leave, and what to do if you are dismissed while ill.
The short answer: no, but it's not absolute protection
In Australia, you cannot be fired simply because you are temporarily absent from work due to illness or injury. Section 352 of the Fair Work Act 2009 makes it unlawful for an employer to dismiss an employee because they are temporarily absent from work due to illness or injury of a kind prescribed by the regulations. However, this protection is not unlimited. The absence must be 'temporary' — and the Fair Work Regulations 2009 define what temporary means. For a non-work-related illness or injury, the absence is temporary if the employee provides evidence (such as a medical certificate) and the total absence is less than 3 months, or the total absence is less than the employee's total accumulated paid personal leave entitlement (whichever is longer). This means if you have accrued 4 months of paid sick leave, your protection extends to 4 months rather than just 3. For a work-related illness or injury covered by workers compensation, a separate and generally stronger protection applies (discussed below). The s352 protection applies to all national system employees, not just those covered by unfair dismissal. It is a general protections provision, which means remedies can include reinstatement, compensation, and penalties.
Workers compensation: the 6-month protection period
If your illness or injury is work-related and you are receiving workers compensation, you have stronger protection against dismissal. In most states, an employer cannot dismiss a worker who is receiving weekly compensation payments for a specified period — typically 6 months from the date the incapacity first arose. In NSW, s248 of the Workplace Injury Rehabilitation and Compensation Act 2013 provides this 6-month protection. In Victoria, s237 of the Workplace Injury Rehabilitation and Compensation Act 2013 similarly provides 52 weeks of protection from the date of incapacity. In Queensland, s232 of the Workers Compensation and Rehabilitation Act 2003 provides 12 months of protection for workers with statutory claims. During this protection period, any termination of employment is unlawful unless the employer can show a reason entirely unrelated to the injury. After the protection period expires, an employer can terminate — but even then, the dismissal must not be harsh, unjust, or unreasonable if the employee is covered by unfair dismissal laws. The intersection of workers compensation law and employment law is complex, and workers in this situation should seek legal advice.
Medical certificates: what your employer can and cannot require
Under the National Employment Standards (NES), an employer can require an employee to provide evidence of their illness or injury when they take personal/carer's leave. The Fair Work Act (s107) states that the evidence must be a medical certificate from a registered health practitioner or a statutory declaration. For absences of one or two days, some enterprise agreements and workplace policies require a medical certificate, while others accept a statutory declaration. Importantly, a medical certificate does not need to disclose your diagnosis — it only needs to confirm that you are unfit for work and for what period. Your employer is not entitled to know what is wrong with you, only that you have a legitimate medical reason for your absence. However, there are limits to this. If your employer has reasonable concerns about your fitness to perform your role safely — particularly in safety-critical roles — they may require you to attend an Independent Medical Examination (IME) with a doctor of their choosing. Courts have generally upheld the right of employers to direct employees to attend IMEs where there is a legitimate and reasonable basis. Refusing a lawful and reasonable direction to attend an IME can be treated as misconduct.
Excessive sick leave: when does a pattern become a problem?
Taking genuine sick leave is your legal right, and an employer cannot penalise you for it. However, a pattern of excessive or suspicious absences can create legitimate management concerns. If an employee consistently takes single days off on Mondays or Fridays, never provides medical certificates, or takes leave that coincides suspiciously with personal events, an employer may be entitled to investigate. This does not mean the employer can simply dismiss the employee. The employer should follow a fair process: raise the concern with the employee, ask for an explanation, request medical evidence, and consider whether a medical assessment is appropriate. If the absences are genuine but frequent, the employer might consider whether adjustments to the role or hours could help, or whether the employee has an underlying condition that might trigger disability discrimination obligations. Dismissal for excessive absenteeism is sometimes upheld as a valid reason by the Fair Work Commission, but only where the employer can demonstrate that the absences are genuinely impacting operations, the employee has been given opportunities to address the issue, and the employer has considered alternatives to termination. Cases like Lynhurst v Angor Management [2022] show that the FWC closely scrutinises the employer's process.
Unfair dismissal while ill: what the FWC considers
If you are dismissed while on sick leave and you believe the dismissal was unfair, you can lodge an unfair dismissal application with the Fair Work Commission within 21 calendar days of dismissal taking effect. The FWC will consider whether there was a valid reason for the dismissal (s387(a)), whether you were notified of the reason and given an opportunity to respond (s387(b)-(c)), and whether the dismissal was harsh, unjust, or unreasonable taking into account all the circumstances. Being ill at the time of dismissal is a highly relevant factor. In Streeter v Telstra Corporation [2008], the full bench of AIRC (now FWC) held that dismissing a long-serving employee while on sick leave without adequate consideration of their medical situation can render a dismissal harsh even if there was a valid reason. The FWC also considers whether the employer made reasonable efforts to accommodate the employee's condition, whether they obtained up-to-date medical advice, and whether they explored alternatives such as modified duties, part-time arrangements, or extended leave. If you are dismissed while genuinely ill, the timing alone does not make the dismissal unlawful — but it places a heavy burden on the employer to justify its decision.
What to do if you're dismissed while on sick leave
If you have been dismissed while on sick leave, act quickly. You have 21 calendar days from the date of dismissal to lodge an unfair dismissal claim with the Fair Work Commission, and 21 calendar days to lodge a general protections claim (if you believe the dismissal was because of your illness). These deadlines are strictly enforced and extensions are only granted in exceptional circumstances. Gather your evidence: your employment contract, payslips, medical certificates, correspondence with your employer about your illness and absence, any performance reviews or warnings, and the termination letter. If you were receiving workers compensation, check whether you were still within the protection period — if so, the dismissal may be unlawful under workers compensation legislation as well, giving you an additional avenue for redress. Contact your union if you are a member, or seek legal advice from an employment lawyer or your state legal aid service. The FWC offers a free conciliation process for unfair dismissal claims, and many cases settle at that stage. If the matter proceeds to a hearing and the FWC finds the dismissal was unfair, it can order reinstatement (getting your job back) or compensation of up to 26 weeks' pay.
The obligation to provide evidence: what 'reasonable evidence' means
Section 107 of the Fair Work Act requires employees to provide their employer with evidence that would satisfy a reasonable person that they are genuinely entitled to personal leave. The most common form of evidence is a medical certificate, but a statutory declaration is also acceptable. For longer absences, your employer may reasonably request updated certificates at regular intervals. What constitutes 'reasonable' evidence depends on the circumstances: a one-day cold may only require a statutory declaration, while a three-week absence would typically require a medical certificate specifying the period of unfitness. Some modern awards and enterprise agreements have specific provisions — for example, requiring a certificate for any absence exceeding two consecutive days or for absences on days adjoining a public holiday. If you fail to provide evidence when reasonably requested, you may not be entitled to paid personal leave for that absence and, in extreme cases, repeated refusal could constitute a failure to follow a lawful and reasonable direction. However, an employer cannot refuse to accept a valid medical certificate simply because they do not believe you were sick. The certificate creates a presumption of genuine illness that the employer would need to rebut with evidence.
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General information and estimates only — not legal, financial, or tax advice. Always verify with the Fair Work Ombudsman (13 13 94) or a qualified professional.
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